Sun Yee On

Sun Yee On is one of the leading triads in Hong Kong and China, founded in 1919. The organization was involved in counterfeiting, gambling, narcotics, human trafficking, prostitution, smuggling, and extortion, and it expanded into the United States, Canada, Thailand, Australia, and Central America by recruiting people from the Chinese diaspora. The group would grow to have over 60,000 members, and it was allied with Wo Hop To and Wah Ching, while it was enemies with the Crips, the 14K Triad, and Wo Shing Wo.